234 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Sarcoidosis or Lofgren's syndrome ... , EBV, HIV, HepB ... #Differential #
Elevated Transaminases / Transaminitis - Differential Diagnosis

 • Infectious: HAV, HCV, HEV, EBV, HSV, CMV
 •
Transaminitis - Differential ... Vascular: Budd-chiari syndrome ... Sinusoidal obstruction syndrome ... Transaminases #hepatitis #Differential ... #Diagnosis #causes
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
cytokines Common causes ... disease Rare causes ... CD3-CD4+ T cells ... Viral infections (HIV ... hypereosinophilia #HE #Differential
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Risks factor for HIV ... decreased PLT count: CBC ... peripheral blood smear, HIV ... #Workup #hematology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... • CMV • HIV ... Lymphocytic Leukemia (CBC ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... - Differential ... etc) - Viral: HIV ... antiphospholipid syndrome ... Diagnosis #Framework #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... Artifact (redo CBC ... effect following treatment ... #Hematology
Causes of Anterior Uveitis - Differential Diagnosis
Anterior Uveitis - 90% of cases of Uveitis
 • Inflammation
Causes of Anterior ... Uveitis - Differential ... Posner-Schlossman Syndrome ... B27-related syndrome ... Anterior #Uveitis #Differential
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential ... Quinidine • HIT ... Non-lmmune: • HELLP Syndrome ... #Hematology
Common Raynaud's Mimickers
 - Acrocyanosis
 - Chill blains (pernio)
 - Erythromelalgia
 - Frostbite
 - Achenbach's Syndrome

Dr.
- Achenbach's Syndrome ... Raynauds #mimickers #Differential ... #Diagnosis #Causes ... #Mimics #rheumatology